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HomeMy WebLinkAboutpitkin.eh.264316402002 (1997)AJF'tN/Ir'I I Kill tNV1KUNMtN I AL HtAL I H Utt'AH I M`'_N F APPLICATION FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM 130 S. Galena St., Aspen Colorado 81611 Phone 970-920-5070/Fax 970-920-5039 Permit /�t�� (a� Parcel ID # u( �j 7 �iP L/ Permit For. New Installation (.0 Repair( Remodel( Emergency Use( ) Name of OWNER L'es lie— Wwc,(s Street Address 116 Mr_cd S Jona I'_ Owners Mailinq Addressetk, (A cXV& S6 Business Phone p Home Phone: ✓%0 - ✓ 23 • 512-11 Leqal Description: Lot 2 Block , 1 1_ Subdivision uG�(y� � jD Size of lot: 2.13 I acres Type of proposed structure: V��fi1C(CACe Size of bldq. envelopev I iOLr Total area l vinq space (sq. ft): �9 "L(ow�it of Bedrooms, offices and similar size rooms: Primary Corttact Person Contact Mailing Address W • o 12J dw tzL, - 920.94 '52- Is i Water. (*./)Private well ( )Spring ( )Stream ( ) Community/Public (Name of Is Proof of Adequate Water Attached ( Required) ? ( ) Yes ( ) No ( A water quality test and well pump test or approval letter from community system) Has this project been approved by Pitkin County ? 1( �) Yes ( ) No Is a copy of the floor plan attached ( Required ) ? (vl Yes ( ) No Is a copy of the site 9 & 1Yes ( ) No Application for an individual sewage disposal system is hereby submitted. I hereby certify that the above information is true and accurate and that I have provided true and accurate information on locations of all existing and proposed wells, contour intervals, buildings, property lines, ditches. slopes, waterlines, springs, suction or irrigation lines, drinking water cisterns, drain tiles, irrigation ditches, Takes, water courses, streams, floodplains, dry gulches, and existing septic systems. I acknowledge that any false or incomplete information will invalidate the application and any subsequent permit. Issuance of the permit does not imply the approval of any other permit required for construction pursuant to Pitkin County codes. No construction may be undertaken until all approvals and permits have been obtained. The owner assumes ail responsibilities in case of failure or inadequacy of this system. —'/,_ Signature of applicant 70 G� Date f2 ' '1.'L ' 9 7 ------------------------------- Z ---------------Fnr1epnnrn9M7isebetaw---------------------------------------------- PERMIT FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM Perc Rate Septic //tank cap r�Jr� �c'eueci a /locoed JJ �S_ min per inch . achy: � % � � gallons gals��� m;�t 40 o 0 ya.l s� junk mus} be. added Profile Hole Depth feet Absorption area: Q sq. ft. im- 'a dd e d -k 46- eu i 5 �,j -Jan k- w h c.k ' S "5++ k tier, ('ed Cf 'hVe 0( P_X6& 1a_A'm . ' se a. ,2-46r �- Ia S" 4 �cc f -16,q k . A Wzo re d u cA' ,z) is whic,h r(safis in 4o,l3 59 14• 01 Me-, area. c✓ 36 e ha m 'ber5 ' '74C 4i J de5l9" 6'.e. d z4ed I! -//-f7 .)Lr) An Inspection is requireu prior tu uacnini u, a.iy —..rv—........� ..�.... ... .. . .... Design by Engineer Required ? ( ) Yes (V) No All plans and specifications of the engineer must be followed. Any changes must be approved by the Aspen/Pitkin Envirommntal Health Department in writing and the engineer must certify the final installation to the Environmental Health Department in writing. / Permit approval by:/G Date �� J Plans and specifications of the pr000Wed individugtl;sewage d sal system have been reviewed and are considered satisfactory. Permission is hereby granted to the owner or the agent to perform the work indicated in accordance with the Pitkin County ISDS Regulation in effect at the time of issue. This permit becomes invalid 6 months from the date that the permit was issued unless system construction has commenced or an extension has been approved in writing by the Department. As -Built dratyfngs must be included with this permit before the final approval will be issued. Installer: rain:k i2�c1 fi,Z i �0 0 0 Receipt✓ Site Plan Well Permit and ✓ Soils Test Date received —�— Floor Plan —�— Water Quality Test or -% Date Info Complete 1; iL Received by Comm Dev Approval _ _ Water System Letter Final Insp Requested Final Inspection Approval: Date: APEHO ease Pix X4,A, ,s ,QLmt d 4&.4 / 0 0 Ntus� +ollau�cd . kv s(n'Aklee' sy .sfu. ,' shoal d be- in e.in a re& of 4?u- l ea.c.,h -�ie/d . �! 1�-�- st4o ck- 41, 4Lk- led -ch keid M (,L s -l- b c. /60 feed- All oAjr, �• Ocks n� u s � he it � h6 utt-34 _6,c- large moayiq 4kc+ !S /)off Q J�U1S G!-fC 110.1 ( ' t .1 40�� APPLICATION FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM 130 S. Galena St., Aspen Colorado 81611 Phone 970-920-5070/Fax 970-920-5039 bS� ParcC �Gy3- t� Permit # el ID # Permit For. New Installation ( Repair( Remodel ( ) Emergency Use( ) Name of OWNER b -5 tZe- Street Address cc,/ Owner's Mailinq Address 00,k Z16Ekl, p c./Y 5 Business Phone Home Phone: 970 • Z -J • 5 1 2 7 Legal Description: Lot 1. Black .� ",1 1 Subdivision ua I ±±04'a Size of lot: 2.13 I acres Type of proposed structure: trbJt,(1�71Q%l I D YPfi tdGtCe Size of bldq. envelope: N Total arearl'tvinq space (sq. ft): �9 + Ate`#fi 8earcoms, offices and similar size rooms: 5 - .. . � r,...,i ­­n�, —... of ra wnkar initfgn it 1 I it of Rerimoms nffires and similar size rooms Primary Contact Person Contact Mailin%'Address /J 2 of 2.1 dW (�., 920.91 52- Water(v)p rivate well ( )Spring ( )Stream ( ) CommunityiPublic (Name of Is Proof of Adequate Water Attached ( Required ? ( ) Yes ( ) No ( A water quality test and well pump test or approval letter from community system) Has this project been approved by Pitkin County ? ( r) Yes ( ) No Is a copy of the floor plan attached ( Required ) ? Yes ( ) No Is a copy of the site clan es ( ) No Application for an individual sewage disposal system is hereby submitted. i hereby certify that the aoove information is true and accurate and that I have provided true and accurate information on locations of ail existing and proposed wells, contour intervals. buildings. property lines, ditches. slopes, watenines, springs, suction or irrigation lines, drinking water cisterns, drain tiles. imgation ditches, lakes, water courses, streams. 9oodplains, dry gulches, and existing septic systems. I acknowledge that any false or incomplete information will invalidate the application and any subsequent permit. Issuance of,the permit does not imply the approval of any other permit required for construction pursuant to Pitkin County codes. No construction may be undertaken until all approvals and permits have been obtained. The owner assumes ail responsibilities in case of failure or inadequacy of this system. Signature of applicant Date ;F 22 9 7 - - - - - - - - - - - - - - - - -------------------------------------------- PERMIT FOR INDIVIDUAL SEWAGE DISPOSAL SYSTEM nest n .,Arena ut s biem w uu i aucu ,. .. a„ „��..,_-__....---- --- - - Perc Rate min per inch Profile Hole Depth feet Septic tank capacity: R y g gallons Absorption area: Q sq. ft. # os -o yo -o- 1,- ink- a2d e d -k 4&L eX I S ��J 4�, k ruu�t'ny ink_ niuS� be GLdded 0461" •1�ce-la �l �1� �. h 5©"%v reducko,7 is a.(lowt+d � 46t_ t-tsk 0 9rz 0eAOss cl mJ_r_-"5 wh,•c-A reser jIS in to 93 Sq a � let cl. f''d d &rea. tr 36 C horn her5 + 'llu �i�a l dcYst y,� g E• D • ehilydl - c1 turd �(- lI 47 (Outr) An mspecaon is requireu priur w uai .uu � a..r ,,...r.,, ... ...._ -•--..__.._..-_ __ Design by Engineer Required ? ( ) Yes (V/ No All plans and specifications of the engineer must be followed. Any changes must be approved by the AspeniPitkin Envirommntal Health Department in wrifing and the engineer must certify the final installation to the Environmental Health Department in writing. / 7 Permit approval by: / Date Plans and specifications of the props, ed individu I sewage dj4sal system have been reviewed and are considered satisfactory. Permission is hereby granted to the owner or the agent to perform the wCrk indicated in accordance with the Pitkin County ISDS Regulation in effect at the time of issue. This permit becomes invalid 6 months from the date that the permit .vas issued unless system construction has commenced or an extension has been approved in writing by the Department. As -Built drawings must be included with this permit before the final approval will be issued. Installer: �0 0 D Receipt # -]I-- Date received 4 K_ Received by Final Inspection Approval: v Site Plan— Well Permit and 7— Floor Plan VWater Quality Test or O� Comm Dev Approval Water System Letter Date: ✓ Soils Test Date Info Complete Final Insp Requested APEHO 10M QMustfvIlouied, be ko 5(n'/ilcicr sy ,Afjc 5hoo-i d be- i n Ctr 4&,e- lea-ch -e 101. IL se# bQ c(L -troe� w C r fa ` tea-ch -keld /mush be- &0 -ee4. All mush- b� put'? ? % 5. b A he ase. d ki 46-1- 2- n d G�Cttc�r cif` �� lux 'lCPbc 4a kl �� �.�lL uccsf hc. l-�e z�vrcyh >o l�ttLcpi,'1� L�tttu l5 xIc 5'rems ai-e of u.,tlowed a4 A,�*-5 Aspen / Pitkin Environmental Health De O partment Contact Log Sheet l?0� Address: "I -'-1, ds Comments / Action to be Taken t Initials LI 6 -Si i54 C S� f r {a w i ( o a `5 r fs 'S ., A - / A 11 if w / � Mir r , A � / 1! VIP l . _ u RMS - • i i / L � / CHURCH & Associates, Inc. ENGINEERS & GEOLOGISTS February 12, 199 Tony Rutgers 512 Spruce Street Aspen, Colorado 81611 u �99� ` ENVIRONMENTAL HEALTH Subject: OWS Design Revision 2, Leslie Rogers Residence Addition ASPEN / PITKIN 0118 Woods Road, Lot 2, Rogers Lot Line Adjustment Pitkin County, Colorado Job No. 8842 Dear Mr, Rutgers, Per telephone conversations with Betsey Kipp of the Pitkin County Health Department (APEHD), we are providing a second revision of our Onsite Wastewater System (OWS) design dated September 4, 1997 under Job No. 8842. This letter describes what the septic tanks and lift station is that exists at the site. The existing construction includes: 1. a 2000 -gallon 2 -compartment concrete septic tank, and 2. a 500 - gallon plastic tank with an Orenco screened vault pump system.. The 1000 -gallon septic tank, which was a part of the original system, was destroyed during construction because of area restrictions. The required septic tank capacity is 2188 gallons. There is 2500 gallons of tankage installed. We requested in a letter to Tom Dunlop of the APEHD that a screened vault pump system be allowed within the same tank as required septic tank capacity. The pump floats were set to pump approximately 100 gallons, so the required tank capacity is not exceeded. Based on a verbal conversation, Tom indicated this was acceptable, as he had allowed this in other recent permits. It is our understanding this installation is acceptable and the file can be completed and finaled. If there are any questions, P�0� REG�SI CHURCH & Associ C ,yG•9� Uic, 1n� W O. Church, ,, Z_ 477 EOC 2 copies sent xc: Pitkin County Health Department, ATTN: Betsey Kipp xc: NEWS, Ltd xc: Dreager Excavating, ATTN: Glen Meehan DENVER 4501 Wadsworth Boulevard Wheat Ridge, CO 80033 CASTLE ROCK 303.660.4358 303.463.9317 Fax: 303.463.9321 EVERGREEN 303.816.1455 03-01-1999 08:22AM FROM E 0 CHURH INC TO CHURCH & February 12,199 Tony Rutgers 512 Spruce Street Aspen, Colorado 81611 ENGINEERS & GEOLOGISTS Inc. LEGACY HOME P.01 Post -IV Fax Note 7671 Date, ­qc p 9�► I TT5� /04D --` 1 Co. K V its- i4 S7 !,- e Phone # Phpne # Fax # Fax # Subject: OWS Design Revision 2, Leslie Rogers Residence Addition 0118 Woods Road, Lot 2, Rogers Lot Line Adjustment Pitldn County, Colorado Job No. 8842 Dear Mr. Rutgers, Per telephone conversations with Betsey Kipp of the Pitkin County Health Department (,APEHD), we are providing a second revision of our Onsite Wastewater System (OWS) design dated September 4, 1997 under Job No. 8842. This letter describes what the septic tanks and lift station is that exists at the site. The existing construction includes: 1. a 2000 -gallon 2 -compartment concrete septic tank, and 2. a 500 - gallon plastic tank with an Orenco screened vault pump system.. The 1000 -gallon septic tank, which was a part of the original system, was destroyed during construction because of area restrictions_ The required septic tank capacity is 2188 gallons. There is 2500 gallons of tankage installed. We requested in a letter to Tom Dunlop of the APEHD that a screened vault pump system be allowed within the same tank as required septic tank capacity. The pump floats were set to pump approximately 100 gallons, so the required tank capacity is not exceeded. Based on a verbal conversation, Tom indicated this was acceptable, as he had allowed this in other recent permits. It is our understanding this installation is acceptable and the file can be completed and finaled. If there are any questions, CHURCH & Edward O. Church, P EOC ....... / i O d 7 2 copies sent xc: Pitkin County Health Department, ATTN: Betsey Kipp xc: NEWS, Ltd xc: Dreager Excavating, ATTN: Glen Meehan DENVER 4501 Wadsworth Bouievard Wheat Ridge, CO 80433 303.463.9317 Fax: 303A63.9321 CASTLE FLOCK 343.660.4358 EVERGREEN 303.816.1455 TOTAL P.01 EOC E.O. CHURCH, INC. ENGINEERS & GEOLOGISTS September 11, 1997 Tony Rutgers 512 Spruce Street Aspen, Colorado 81611 Subject: OWS Design Revision 2, 0118 Woods Road, Lot 2, Pitkin County, Colorado Job No. 8842 Dear Mr. Rutgers, SEP 1 11997 ENVIRONMENTAL HEALTH ASPEN ( PITKIN Leslie Rogers Residence Addition Rogers Lot Line Adjustment Per telephone conversations with Betsey Kipp of the Pitkin County Health Department, we are providing a second revision of our Onsite Wastewater System (OWS) design dated September 4, 1997 under Job No. 8842. The revision is with respect to installation of a separate 500 gallon tank for the pump. Pitkin County does not allow a pump to be installed in the second chamber of a septic tank, even with a screened pump vault. Therefore a minimum 1250 gallon septic tank will be required followed by a 500 gallon pump tank. Depending on timing, we can request that screened pump vaults be allowed in the second chamber of an oversized tank for this project, but for obtain the permit two tanks will be required. The above configuration is based on the assumption of a 1000 gallon at this site. If the tank is different from a 1000 gallon tank, adjustments willbe required. If there are any 7Uestions, pease call. E. 0. CHURCH INC,'-- ward NC, -ward 0. Church EOC/cbs 3 copies sent xc: Pitkin County Health Department, ATTN: xc: NEWS, Ltd. 925 East 17th Avenue • Denver, Colorado 80218-1407 (303) 832-9692 FAX (303) 832-3517 Betsey Kipp P.O. Box 2869 • Evergreen, Colorado 80437-2869 (303) 674-0660 FAX (303) 674-0813 ASPEN/PITKIN ENVIRONMENTAL HEALTH DEPARTMtNT ISDS DESIGN REQUIREMENTS DEPARTMENT USE ONLY Permit # Name Woods Parcel ID # House SIZE >2000 (75 gpd, 100 gpd, or 130 gpd) 100 Number of Bedrooms, Lofts, Offices, Similar Rooms, Main House 5 Number of Bedrooms, Lofts, Offices, Similar Rooms, Caretaker unit Average Daily Waste Flow 750 # bedrooms X 2 people/br X 75 State Review Required? no Perc Rate 8 (T) Design Flo w (Q) _ # bedrooms X 2 people/bedroom X gpd X 1.75 Q= 1750 Absorption Area (A= Q/5 X SQRT) A = 989.9495 sq. ft. of absorption area required 55 infiltrator units without reduction or 329.9832 lineal feet of 3' wide trenches ✓ pfd V(r, -ia n t eay'f ce 1 saf l i s slv��w� S � JYke 5S r1l 0 byr 11 IGf s sc, luck -S ki c.lu L�13 160 4&t we, (I a 4nd<n see pajt Pry Paul v n d (,ry � 6 • Ch,,d,. A maximum 30% reduction is allowed for use of deep gravel or gravelless chambered system. 692.9646 sq.ft. with reduction 38 infiltrator units with reduction 230.9882 lineal fe t of infiltration units in 3' wide trenches Type of system: [tAbsorption trenches []Absorption bed [] Gravelless chambers []Dry well []Seepage Pit []Pumping Chamber Is an Engineer -Designed System required? no v' yes reason: Minimum tank capacity 2187.5 gallons SETBACK FROM WELL # of feet = 160 Remember: 8 feet of additional distance for each 100 gallons/day of design flow over 1,000 gallons/day should be added unless an RPE can verify that it is not necessary to prevent contamination. APPROVED FOR ISSUE BY: SYSTEM INSTALLED BY: DATE OF FINAL INSPECTION REQUEST: FINAL INSPECTION BY: Printed on Recycled Paper DATE: DATE: s o 1. Ed 01 wal, 36�--73�,-35/7 Fr6(n4 "& V -i' � r Op A5 Piu�n �70- sV3 V (pha-w-,) 170 - 5197 i Faxi C FQx� Re; f�IUS �sof) �� ers (Oio cids) 1 �o ,►� 4alik ftfaa�y ar(- re-�w'rnd. P140 m off' If`es 46- d eSi n l oa-d h 36 -A a,1 sept J l 6 0 o -ga- I -htn. Ic .CA a -'rajt pa'af mi O& m her i1C.e�sbt�nSf�l d u atmos lx. housc.J ��C(c5C_. �C-i� fie- kn0u1 i� C s V 64iwrw i aC � ' 11 W r i �ius requ,treacen4 -4 5e„d you. C� coy• or X CDA • MEMORANDUM TO: Lance Clarke, Pitkin County Planner FROM: Renee Dake RE: Minor 1041 Hazard Review - Woods Addition DATE: July 18, 1997 A 2.131 acre site with approximately 1800 s.f. of buildings: an existing single family home of one storey with a basement and attic, a detached garage, and two small detached accessory structures. The proposed project is an approximately 650 s.f. addition to the main house. The following is the submission required in Land Use Code Section 5-70.20: A. General: This submission is based on the May 14, 1996 Pre -Application Conference Summary of the then -named Rogers AdditiorvRemodel. The client is the same, but with a different name, and the project is similar in scope. B. Applicant's Background Information: Refer to attached letter. C. Parcel Description: The street address is 118 Woods Road, Woody Creek. The current legal description is "Lot 2 - Rogers Lot Line Adjustment." Refer to attached 8-12"xl 1" vicinity map locating the property within Pitkin County. D. Disclosure of Proof of Ownership: Refer to two (2) attached certificates from Pitkin County Title. E. Legal Access: There is adequate legal access, as shown by the maps with the existing house on the property, to which this proposal is an addition. F. Standards Report: Land Use Code Minor Review for Development of One Single Family Dwelling Unit Within Areas of Local and State InteresV1041 Environmental Hazard Review, Section 3-60 Environmental and Aesthetic Standards 3-60.20 Air Quality The existing house has a gas log fireplace, and the addition will have one as well, both of which are acceptable under Pitkin County Environmental Health Code. 3-60.30 Preservation of Natural Landscape The addition to the existing house will fall completely on an all but flat, grassy piece of land, clear of the large existing pine tree that is on the south side of the existing house, and well above the 100 year flood mark. Minimal site re -grading, under 50 cubic yards, will be necessary to accomodate the addition. New utilities will not have to brought into the site, so they won't cause a disturbance. 3-60.40 Scenic Overlay The site is not on a ridge line or in the public viewplane. The buildings are clustered within a heavily forested area at the base of a hill near the Roaring Fork River. Renee Church Dake, Architects PO Box 10673 - Aspen, CO 81612 - 970.920.1388 - 970.920.7723 fax - rdake @ rof.net w' 3-60.50 Scenic Quality The building will not be a visual problem from the adjacent properties and uses; it is well screened and private. 3-60.60 Solar Access The addition does not mitigate the solar access to the existing house. The buildable area of the site is sheltered by the existing adjacent vegetation and hillside, taking advantage of daylighting wherever possible. 3-60.70 Reduction in Density for Steep Slopes The existing house and addition are on a parcel of land with less than 30% of the land having a slope of 45% or greater. G. Pre -Application Conference Summary Sheet: See attached, dated May 14, 1996, from Lance Clarke to Renee Dake. H. Site Utilization Maps: See four (4) attached. I. Copies of Application: See four (4) attached. Renee Church Dake, Architects PO Box 10673 - Aspen, CO 81612 - 970.920.1388 - 970.920.7723 fax - rdake @ rof.net EOC H� Ess, E.O. CHURCH, INC. ENGINEERS & GEOLOGISTS September 11, 1997 SEP 111997 Tony Rutgers u ENVIRONMENTAL / P H TM L 512 Spruce Street Aspen, Colorado 81611 Subject: OWS Design Revision, Leslie Rogers Residence Addition 0118 Woods Road, Lot 2, Rogers Lot Line Adjustment Pitkin County, Colorado Job No. 8842 Dear Mr. Rutgers, Per telephone conversations with you and Betsey Kipp at the Pitkin County Health Department, we revised the Onsite Wastewater System (OWS) design dated September 4, 1997 under Job No. 8842. The OWS has been upgraded from four bedrooms to five bedrooms based on a 3250 square feet (SF) structure. This revision should be considered a part of our design dated September 4, 1997. The sewage loading for a 3250 SF five bedroom home is 1000 gallons per day (GPD), based on two people per bedroom and 100 GPD per person. A 1.75 peaking factor is required results in a design loading of 1750 GPD. The design loading includes a garbage grinder, dish washer and washing machine. We recommend the installation of a septic tank, lift station, dis- tribution box and chambered trench drain field OWS at the locations indicated on Revised Fig. 2. We recommend the installation of a 1500 gallon septic tank, if the existing tank is a 1000 gallon septic tank. The minimum septic tank requirement is 2000 gallons, 2500 gallons with lift station chamber. We recommend four trenches with a total of 720 SF be installed, based on a sewage load of 1000 GPD and a percolation rate of 8 MPI. A total of 40 chambers is required. The dimensions of the trenches and number of chambers per trench are presented in Revis- ed Fig. 4. The OWS should be constructed similar to Revised Figs. 2 and 4. All other recommendations described in our report dated September 4, 1997 sllpqkll followed. If there are any^ ase call. E. O. CHURCH, INC' .Q !(ry /-Ii 0.1" 13 = _ Edward 0. ChurchIL`�;,tE . 1600. N A 1. EOC/cbs 3 copies sent xc: Pitkin County Health Department, ATTN: 925 East 17th Avenue • Denver, Colorado 80218-1407 (303) 832-9692 FAX (303) 832-3517 Betsey Kipp P.O. Box 2869 • Evergreen, Colorado 80437-2869 (303) 674-0660 FAX (303) 674-0813 SCALE \ 2.1.5 iAM$ 0.85' RECORD OVERLAP \, ROGERS D C ,...... 1182 0 AD T QT LINE ADJUSTMENT \� GRAVEL R COLINTI\ LORADQ \ EXS T I I`YC \RK I NG ZG ' \\ SHA ED ELL��`' \ 918911 TBM01}\ SEEPAGE PIT TO BE ABANDONED EXISTING SEPTIC TANK SHED 4STMENTOSEPTIC4TANKO P� �\ . �� \ T STATION IN SECOND TM \\\\\\\�\ r \\ \t I \\ STC. WALL\ i ATE LVE WOOD DECY. �oF,\0. RHANr 200 ` \ `f GARAG 2L I \` a& HOUSE NE ? 2429 a, , ppl Win nwrrr 1 �_ `� + NE WALL -� d ff \\ 2- P �1 C) F` \ I ONE ID \ \ !` \4PVC \ \\ D I S T R i 4N . BOX R CHAMBERED TREI�tG�I I` A\�\\\'-'OODED CHAMBERS PER TRENCH ,--- 4TAL AREA - 724 SFEDGE 5TEEP \ WOODEDEH I L$ I DE 7 LOCATION OF PROPOSED OWS JOB NO. 8842 RE3/ I SED` F 1 1 1� � TYPICAL PLAN VIEW 3' OR 4' PVC - ---�'� OBSERVATION/VENT PIPE G' MIN. 3' TYPICAL CROSS-SECTION NATURAL GRADE *mw '4/ GRAVELLESS CHAMBERS 3' SPECIFICATIONS DFSIGN CRITFRIA STRUCTURE - 5 BEDROOM RESIDENCE TOTAL LOADING - 0 - 1000 GPD PERCOLATION RATE - T - 8 MPI AREA - (1.75 X O X -M/5 TOTAL AREA - 990 SF REDUCTION FOR USE OF CHAMBERS - 30i 10TAL AREA - 693 SF I-REAMENT UNIT SPECIFICATIONS SEE BELOW EFFLUENT INLET FROM DISTRIBUTION BOX 3' OR 4' PVC OBSERVATION/VENT PIPE SLOPE FOR DRANAGE <-- ,3 * -- GRAVELESS CHAMBERS 1 RENCH SPECIFICATIONS LENGTH - 625 FT WIDI H - 3 FT NUMBER OF TRENCHES - 4 101 -AL PROPOSED AREA - 720 SF NUMBER OF CHAMBERS PER FRENCH - 10 I OI AL NUMBER OF CHAMBERS - 40 EXISTING TANK CAPACITY TO BE CONFIRMED ADD 1500 GALLON TWO COMPARTMENT PRECAST CONCRETE SEPTIC LANK WITH A HUMP IN A SCREENED VAULT IN ]HE SECOND CHAMBER TRENCH DETAILS JOB NO. 8842 REVISIED FIG_ 4 a� Z9-02-1997 09:49AM FROM E.O. CHURCH_MERRITT HOUSE TO 19709205197 P-01 - R - 7671 Date( o. q� P89es► 'Se- Tony Se Tony R 57.2 Sp Aspen Subject;! Dear Mr Per telE County, ; !.F (Ows) die been upc square if of our 'c E.O. CHURCH, INC. ENGINEERS & GEOLOGISTS 11, 1997 :e Street 31orado 81611 Post -,t Fax Note To 7Fax ! Fj Co./Dept. Co.nPhone 1i Q Q 38-3�Fax # I Z� 2� 'S to I�'JJrI D OWS Design Revision, Leslie Rogers Res &6" dlil' �a, o118 Woods Road, Lot 2, Rogers Lot Li � `-lA up tment Pitkin County, Colorado $ 1997 t Job No. 8842 Rutgers, phone conversations with you and Betsey Kipp at the Pitkin fealth Department, we revised the Onsite Wastewater System sign dated September 4, 1997 under Job No. 8842. The OWS has 'raded from four bedrooms to five bedrooms based on a 3250 aet (SF) structure. This revision should be considered apart esign dated September 4, 1997. she sewage loading for a 3250 SF five bedroom home is 1000 gallons per day (GPE), based on two people per bedroom and 100 GPD per person.' A 2,75 pe king factor is required results in a design loading of 1750 GPD, The design loading includes a garbage grinder, dish washer and was'r_i.ng' machine. We recoi>tmend the installation of a septic tank, lift station, dis-- `ributi;n box and chambered trench drain field OWS at the locations ndicatld on Revised Fig. 2. We recommend the installation of a 1500 gallon,eptic tank, if the existing tank is a 1000 gallon septic tank. The minimum septic tank requirement is 2000 gallons, 2500 gallons with lift st' tion chamber. We recommend four trenches with a total of 720 SF be i stalled, based on a sewage load of 1000 GPD and a percolation rate of 8 MPI. A total of 40 chambers is required. The dimensions of the trenches and number of chambers per trench are presented in Revis- ed Fig,.' 4. The OWS should be constructed similar to Revised Figs. 2 and 4..I All other recommendations described in our report dated sentember 4, 1997 shpAg followed. Zf ther0 are any F. O. CHURCH, I ' i Fdwar&l Church 'I :SOC/cbsl -3 cop ' �i xc: Pi i 925 Fast 17th Avenue (30 1 832•&32 I sent v�ri.•_ ase call. kin County Health Department, ATTN: Betsey Kipp Denver, Colorado 80218-1407 P.O. Box 2869 - Evergreen, ColoFado 80437-2869 FAX (303) 832-3517 (303) 674-0660 FAX (303) 674-0813 nlr-P_5-1997 09.49AM FROM E.O. CHURCH_MERRITT HOUSE TO 19709205197 P.02 SCALE 0.85' RECORD OVERLAP 1 30 \ ROGERS D AD > I T OT LINE ADJUSTMENT ^ \ GRAVEL COUNT LORADO \ EX ST 'RKING Zo \ ;{ .,' SH'S;I ELti `' 9184, T8 ea SEEPAGE PIT TO BE ABANDONED I \\ \ EXISTING SEPTIC TANK OSED 1500 GALLON TWO SHED \ P TMENT SEPTIC TANK T STATION IN SECOND S STO W 4LL 9TDR WOOD DEM t 1 k w, ea ice, l ` \ V0 \U RHAN o GARAG i tl \ \ N HOUSE \� NE :°' \\ \ \ t wmb DIMIftin / l I4F WALL �\ 2- P ]' , \ 0 11P o \ \ e ONE �ID EIC \ l \ \ r` 4: P V DIS '0INI BOX OODED ' R CHAMBERED TRE ` \\ CHAMBERS PER TREND OTAL AREA - 720 SF EDGE OF STEEP o p100()ED H I LS I DE 1""'��v i f \\ S LOCATION OF PROPOSED OWS JOB N0.1,6842 R i SED\ F ! i i 09-08-1997 09:50AM FROM E.O. CHURCH_MERRITT HOUSE TO i TYPICAL P,,LkN VIEW it !� GRAVELLESS CHAMBERS 6" Mftd. -o 3' OR -I' FVC -4- 013 E`ZVATION/VLM PIPE I 3 0 i �t it li is T YPICAL CR �j. I i N ATUR>AL GRADEI ii. i I .i MCIF;CAT 'I RESIrN CRdT TOTAL! 4 PERCC AREA j', TOTAL I REDUCTI I01AL i. I REAMEN'I 1 EXIS',lil► ADD', WITH :i SEE BELOW 19709205197 P.03 i I EFFLUENT INLET FROM DIS.TRGUTION BOX I' I SECTIQN 3' OR 4' PVC OBSERVATION/VENT prc- i SLOPE FOR DRANAGE F— I.� MIN I GRAVELESS CHAMBERS i RIA TRENCH SPECIF=ICATIONS IRE - S BEDROOM RESIDENCE LENG TH - 62.5 FT OADING - 0 - 1000 GPD Wlu I H - 3 F (- TION RATE - T - 8 MPI NUMBER OF= ! RENCHFS - 4 7S X 0 X -M/5 TOIAL PROPUStD AREA - 720 SF REA - 990 SF NUMBI_R OF CHAMBERS PER TRENCH - 101 V FOR USE OF CHAMBERS - 30% 'TOTAL NUMBER OF CHAMBERS - 40 REA - 693 SF= NIT SPECIFICATIONS i TANK CAPACI I YTO BE CONFIRMED 0 GALLON 'I WO COMPARTMEN I PRECAS 1 CONCRE I E SEPTIC I ANK HUMP IN A SCREENED VAULT IN THE SECOND CHAMBER TRENCH DETAILS I i TOTAL P.03 "4ND 09-03-1997 01: 56PM FROM E.O. CHURCH_MERRITT HOUSE TO 19709205197 P.01 EOC '. E.O. CHURCH, INC. ENGINEERS & GEOLOGISTS September 4, 1997 Tonv Rif gers i 512 Spx'�ce Street Aspen,'�olorado 81611 Subjects OWS Design, Leslie Rogers Residence Addition 0118 Woods Road Lot 2, Rogers Lot Line Adjustment Pitkin County, Colorado °1 SEP 0 1997 li Job No. 8842 ENV1R �f.ri+Wl`I i" L. HcA,L1'H Dear Mr• l j Rutgers, ASPEN I P111KIN. As requested, we have visited the site, reviewed subsurface conditions and de$,J.gned an Onsite Wastewater System (OWS) . The OWS design' is based o the Soil Evaluation and Percolation Test report prepared'by Nelson',; nvironmental and Wastewater Solutions, Ltd. (NEWS) dated August', 44 , 1997. :SITE CONDITIONS - The site is a 2.81 acre lot with an existing three J--ledroomi residence in a rural area of Pitkin County, Colorado as indi- cated b Fig. 1. The slope at the proposed field area is 15% to the northeast. The ground surface has a moderate cover of evergreen trees 'Ind landscaped areas_ The site is not in a confined drainage area. :XISTIN� AND PROPOSED CONSTRUCTION - three bedroom residence exists ;a the ;site. A one bedroom additio is proposed at the location indi- cated o:t Figs. 1 and 2. The tot area of the residence will be 3250 square, 'I (SF). The OWS for he proposed residence is sized based on the;'Structure having betwe 2000 and 6000 SF. The sewage loading for a 4250 SF four bedroom home is 800 gallons per day (GPD) , based on `.:wo people per bedroom and 100 GPD per person. A 1.75 peaking factor s raou'red results in a design loading of 1400 GPD. The design load- .nq includes a garbage grinder, dish washer and washing machine. The res'.tdence is served water by the existing shared onsite well :,ocatedj'northwest of the structure. The proposed trenches will be , 1ocatedl !200 feet from the existing well and 105 feet from the Roaring Fork RS: er. The distances meet Pitkin County setback requirements of x.32 feed and 82 feet respectively. .he exi ting OWS consists of a reported 1000 gallon septic tank and a seepage;'pit (dry well) as indicated on Figs. 1 and 2. The septic tank is accessed by an ejector pump in the basement mechanical/laundry gloom. The size of the septic tank will have to be confirmed at the time ofconstruction. The seepage pit is to be abandoned. CE CONDITIONS - Subsurface conditions were investigated by SUBSUR� NEVIS. $ubsurface conditions were explored by excavating a test pit and thi:r'e percolation holes at the locations indicated on Fig. 1 in Appendix, A. Subsurface conditions consist of 1 foot dark brown silty 925 P_= 17th %,12.9692 Denver, Colorado 80218-1407 FAX (303) 832-3517 PO. Box 2869 • Evergreen, Colorado 80437-2869 (303) 674-0660 FAX (303) 674-0813 i 09-03-1997 01:57PM FROM E.O. CHURCH-MERRITT HOUSE TO 19709205197 P.02 i( 2 loam osoil underlain by slightly lighter silty clay loam to 8 feet, underll14n by a lighter tan silty sand and cobble layer to the maximum depth, !eplored of 9 feet. No free water or bedrock was encountered in the test pit. Percolation rates ranged from 4 to 11 minutes per inch (MPT).;,l average percolation rate of 8 MpI. The material in ',the profile pit was a colluvial soil and the 4 MPI percolation rate isIdue to random sandy zones. The average percolation rate is representative and is!a suitable soil. Profile and percolation data is presented on the Pit in County forms in APPENDIX A. 'i RECOMMMIDATIONS - We recommend the installation of a septic tank, lift station distribution box and chambered trench drain field OWS at !the location indicated on Fig. 2. The OWS should be constructed similar to Figs 2 and 3. The minimum septic tank requirement is 1750 gallons. The sii;4 of the existing septic tank capacity needs to be confirmed. If the! xisting septic tank is 1000 gallons, we recommend removaljof the di'' ding baffle, or at least creating a 2 foot hole in the baffle. With ab existing 1000 gallon tank, we recommend the installation of a second'' 250 gallon two compartment precast concrete septic tank.' A screened vault lift station should be installed in the second chamber of the',4econd septic tank as the lift station. An alternative is a third's 00 gallon tank to contain the screen vault pump assembly. A distribution box allows distribution of flow to the trenches. We recomme Ad three trenches with a total of 594 SF be installed, based on a sewa!g load of 800 GPD and a percolation rate of 8 MPI. A total of 33 chamb ers is required. The dimensions of the trenches and number+ of chambgps per trench are presented in Fig. 3. The trenches should'be backfilled with onsite soil to reestablish the original slope. Cham- bers w�lch allow curving of the trenches can be used. If the, gwner is anticipating finishing of additional bedrooms in un - finish areas or additions, we recommend the OWS be constructedito serve It e additional loading. The installation of a properly sized OWS to serve future buildout can be cost effective. The proposed septic tank co figuration will serve up to a five bedroom residence between 2000 ajn 6000 SF. For greater than five bedrooms, the septic tank must b;e�upsized to 500 gallons per bedroom. Each additional bedroom greate�IIthan four bedrooms would require an additional 149 SF; (9 chambe;t�s) of chambered trenches. jI We recd mend the surface of the trenches be seeded after installation of thei!,ystem. A good native grass cover will promote transpiration. e r..eco'mend a local native seed mix available at seed stores. These nixes &, not require irrigation. No automatic sprinkler system should be insftalled over the trenches. The oW4r must realize an OWS is different from public sewer service. The''owner must assume responsibility for maintenance of the system. The OWIS' is relatively maintenance free, but the owner must have the septic!: tanks pumped and the screened vault cleaned. We recommend the first +. nk be pumped every two years. There are daily considerations such ss of putting plastic or other nonbiodegradable material in Ows. Water ;u a must be monitored so toilets are not allowed to run when seals jm4lfunction. To illustrate the point, a running toilet will consumlei,in excess of 1000 gallons per day if allowed to run. An excess 1000 G,P6 load may flood and irreparably harm the trenches. 09-03-1997 01:57PM f'I i FROM E.O. CHURCH_MERRITT HOUSE TO 19709205197 P.03 3 We caiit.�ion against installation of a water softener. The hydraulic load'gi from the backwash of a water softener can be detrimental to OWS ai; a separate drywell should be constructed for the backwash waste; f a water softener is installed. Landscaping or plastic should not beiinstalled over the field. Chemically treated water from a 6wimmin4 pool or spas should not be introduced into the oWS. LIMITATIONS - Our investigation, layout, design and recommendations are ba,s d on data submitted. If subsurface conditions considerably diffOlJe' t from those described in this report are encountered, we shoul4levaluate the effect of changes on the proposed OWS. If modifi- catio'TU to this design are made by a Health Departments, we should be con*a , ed to evaluate the impact on the performance of the OWS design. All co; truction is to be in accordance with the ISDS regulations. Pipe try e and size, burial requirements, septic tank construction, and other's ecifications, which are not depicted in our report, are' to confottm'to the requirements of the Pitkin County ISDS regulations. The installer of the system is to be approved by the County Health Depart- ment,land is to have demonstrated a knowledge of the ISDS regulations and requirements. If thei6 are any qu please call. E. 0.: i4URCH , IN ��-'• C,S; •rF� EOC/cb$ 3 cope xc : Phiil ) ai' �/�• S. Churc � • •� NAL sent in County Health Department, ATTN: Betsey Kipp 09-03-1997 01:58PM FROM E.O. CHURCH-MERRITT HOUSE TO 19709205197 P.04 2.16 ACRES 9r,AI F ROGER RESIDENCE %`. 01.18 WOODS ROAD 4"! .-!e SIR?, LST 2 ROGERS LOT LINE ADJUSTMENTf l M N COUNTY COLORADO �,,to .,. \� m S -1/i" R4i3- 2 'iaA. i 4 H"E \ \ \ \ • 3 \ SEEPA ` r 1 OF UN W I E \ ` 109 TEPR FLOOD PLAIN EXI STIIING I TA Sall P&14 .6 REpoR! EDL 0 GAL Lm L C L 'ED) ^^'�..--• " L� aG STEEP lOOEIb NIL71 p6 i ( 1 SI\\\ J® v Y� ( I LOT 2 i.LSL fCM5 -I- \ 1 + \ av 10, I MALR ROLA TALL I � �. op •, I -1LT 027 a7 i o IVQ� EE TOR PUMP IN BASEMENT PUMPS SEWAGE TO SEPTIC TANK. 8A MAP SUPPLIED BY ASPEN SURVEY ENGINEERS, INC. I) SITE PLAN J06. 8842 FIG_ 1 I • i i� 09-03 N."i cSPM FROM E.O. CHURCH_MERRITT HOUSE TO 19709205197 P.05 i SC/ALE ;1• ;; 2, T3 S 0.85 • RECORD OVERLAP \ ROGERS D O AD OT LINE ADJUSTMENT \i\ GRAYEI_ RT COUNT LORADO � E ST I tRK I NG �d \ \ SH O ELb 9184, TB M 60 SEEPAGE PIT TO BE ABANDONED EXISTING SEPTIC TANK \ \\ \ 1 OSED 1250 GALLON TWO sH� P TMENT SEPTIC TANKlei STATION IN SECOND \TM T S 1 S1'0 WALL JHID \ A: WAVE >C 1 \ `1 O 13AN ,2G4' GARAG j � � \ � u HOUSE INN wow • .f r \ 10937 _ \ -r4E WALL 2- P �l ` I 0 P�r N \ 6' NE k1D \ D I sirs ON ' Box \ \ \ r EE CHAMBERED TR t \ \ \ woaDID [D CHAMBERS PER TRENC I OTAL AREA 594 SF / � �� EDGE OF STEEP .r WOODED HILSIDE r \ \ SFE @O I \V LOCATION OF PROPOSED OWS w' JOB NO. $;,842 \171 f 71,�;--03-1997 01:59PM FROM E.O. CHURCH-MERRITT HOUSE TO i . I e �■ �s■ . ■ ■ WI WITU r, N. 19709205197 P.06 LON TWO COMPARTMENT PRECAST CONCRETE SEPTIC TANK WITH LIFT IN SECOND COMPARI MENT OF SECOND TANK INLET FROM FIRST SEPTIC TANK POWER LINE WITH -' SEPARATE DEDICATED CIRCUITS FOR PUMP AND ALARM i I ACCESS LID DISTRIBUTION VALVES UNION JOINT FOR QUICK DISCONNECT HIGH WATER ALARM - ON/OFF FLOAT EFFLUENT Pk)MP ORENCO 60 INCH 15 INCH DIA. SCREENED PUMP VAULT WITH VAULT INTAKE 12 INCHES FR,bM BOTTOM OF VAULT i. CONCRETE BLOCKS SPECIFICATIONS: I. MINIMUM PUMP CAPACITY= 30 GPM AT A 15 FOOT 1HEAD 2. PUMP ON LEVEL WITH A MINIMUM OF 150 GALLONS FOR PUMPING 3. INS TALL PRESSURE RELIEF VALVE AT HIGH POINT IN PUMP LINE. I 4. AUD113Li� ALARM IN BUILDING. ALARM LEVEL 3 INCHES ABOVE -ON- FLOAT LEVEL OF TANK 1-0 13E INSTALLED' ON DEDICA (ED CIRCUIT i i i PUMP CHAMBER DETAIL FIG_ 3 09-03-1997 02:00PM FROM E.O. CHURCH_MERRITT HOUSE TO TYPICAL. ( AN MEW I�:�I GRAVELLESS CHAM6ERS '! r 3 OR 4PVC U OBSERVATIONfVET PIPE 1 I I 'i i; >i 1� i. YPICAL I� I NATURAL GR DE ! i I I i ,i sPECIRCAl DESIGN' CF ri Im i 'I � I I: JOB NQ_ 8842' r, 3' l SEE BELOW 19709205197 P.O? EFFLUENTINLET FROM DISTRIBUTION box TION 3' OR 4" PVC OBSERVATION/VENT PIPE SLOPE FOR GRAVELESS CHAMBERS TRENCH SPECT -CATIONS FURE - 4 BEDROOM RESIDENCE LENGTH - 6875 111 LOADING - 0 - 800 GPD WIDTH - 3 FT ATION RATE - T - 8 MPI NUMBER OF T RENCHES - 3 (1.75 X 0 X -M/S I OTAL PROPOSED AREA - 594 SF AREA - 791 SF NUMBER OF CHAMBERS PER TRENCH - II 'ION FOR USE OF CHAMBERS - 30y TOTAL NUM& -R OF CHAMBERS - 33 ARS :A - 554 SF UNII SPECIFICATIONS IG 1000 GALLON SEPTIC TANK (TO BE CONFIRMED AT INSTALLATION) 'SO GALLON TANK WI I H SCREENED PUMP IN SECOND CHAMBER TRENCH DETAILS FIG_ 4 TOTAL P.07 P_01 Aug -21-97 01:06P Nelson Environmental & Wastewater Solutions Ltr _ E August 21, 1997 W Ms. Leslie Rogers S 0118 Woods Road Aspen, CO 81611 Subject: Soils Evaluation and Percolation Tests for an Additional Individual Sewage System for a 2.13 -acre Parcel of Land, Lot 2, Rodgers Lot Line Adjustment, numbered as 0118 Woods Road, Pitkin County Colorado Dear Leslie, As requested, Nelson Environmental and Wastewater Solutions, Ltd., has performed a soils study and percolation testing to design a septic system for the residence at the subject site. We conducted this study according to Article 5 of the Pitkin County Regulations on Individual Sewage Disposal Systems on Tuesday August 19, 1997. We have based our recommendations on the subsurface conditions encountered at that time. Please furnish this letter and a copy of the enclosed data sheet to the Aspen/Pitkin Environmental Health Department to obtain a permit to construct this individual sewage system. Existing, and Proposed Construction and Building Site: The existing main residence is currently a three-bedroom, three bathroom, two-story frame house. The total living area of the existing house is calculated to be approximately 2700 square feet. There are unoccupied outbuildings and a detached garage also constructed on the property. As we understand, the plan is to add a 550 square foot addition on the south side of the house. Included in this addition is one more bedroom and another bath. The domestic water supply for the residence is from a drilled well off of the northwest corner of the property. The water service lines are already in place.. The lot is approximately 2.13 acres in size and located along the Roaring Fork River. Most of the property slopes to the West at grades up to 40 %. However, the ground surface in the area of the p: -inosed absorption field slopes to the Southeast at 15%. The developed portion of the property is cc ered with evergreen trees and landscaped with lawn and flower beds. There is a small spring -fed pond on the property with the overflow discharging into a rock -lined channel flowing to the river, Existing Onsite Sewage System No records are available at the Aspen/Pitkin Environmental Health Department. However, the existing system on the property is believed to consist of a 1000 -gallon concrete septic tank just west of the house. This tank receives the sewage flow from a grinder/ejector pump located in the P.O. Box 6961 Snowmass Village, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 Aug -21-97 O1:O8P Rodgers Residence Evaluation of Soil and Percolation Testing 0118 Woods Road August 21, 1997 Page 2 basement mechanical/laundry room of the house. The size, location, and construction methods for the final septic tank effluent discharge are unknown. Because of the addition planned for on the house, expansion of the septic system is expected to be required by the Aspen/Pitkin Environmental Health Department. Subsurface Conditions: A soil profile pit, excavated across the area considered suitable for an on-site wastewater disposal system absorption field, was dug to a depth of approximately nine feet. The excavation revealed that no groundwater was encountered to that depth. Further, there was no bedrock evident in the profile pit. The soils within the profile excavation consisted of 12 inches of dark brown silty loam topsoil grading to a slightly lighter silty clay loam to a depth of eight feet and overlaying a lighter tan silty sand and cobble layer at the bottom of the profile pit. Some loose shale fragments were encountered in a eighteen inch layer below the topsoil in percolation test pits 42 and #3. Percolation Testing: The subsurface soil conditions were evaluated with the standard percolation test procedures at the approximate location shown on Figure 1. The test holes were excavated to a depth anticipating the installation of a level bed with a three foot cut on the side that was most downhill and were dug to the same elevation. The test holes were prepared by hand -digging a small hole in the bottom of a three foot deep backhoe excavation. Four inches of gravel were placed in each test hole after all loose soil had been removed and the test hole sidewalls roughened. During the final test hole preparation we avoided siuvat int; Lhis broil aui faced. The percolation holes were pre-soaked by adding water to a depth of ten inches above the gravel layer early in the morning of the day the test measurements were done. At regular two-hour intervals throughout the day, the test holes were refilled. When the test began, the test holes were empty, and were refilled to a depth of ten inches above the bottom of each test hole. The results of the percolation testing are presented in Table I. These results indicate the silty clay loam soils had an average percolation rate of 8 minutes per inch. Soils with a percolation rate in dols 141160 a►r. wiia dvj%_ 1 yuttulj iftfiltnation docign for the onsite SPlit'aaP system. P. 01 Aug -21-97 01:1OP Rodgers Residence Evaluation of Soil and Percolation Testing 0118 Woods Road August 21, 1997 Page 3 Limitations: This report has been prepared according to generally accepted practices in this area for use for sewage disposal design purposes. The conclusions and recommendations submitted in this report are based upon data obtained from our site visits at the location indicated. There is some possibility that the nature and extent of variations in the subsurface soils across the site may not have been evident at the time of this investigation, and may need additional evaluation, if further excavation reveals conditions different from those described. This office should be advised of any unusual situations as soon as possible so that we may reevaluate our recommendations. If you have questions or if we may be of further assistance, please call the office. Sincerely, Reviewed By: Robert F. Nelson, R.E.H.S. Ed Church, P.E:. President E. 0. Church, In,_=i�at�;iGeologists Attachment cc: Tony Rutgers Rutgers Construction, Inc. P.O1 Aug -21-97 01:12P P_01 Nelson Environmental & Wastewater Solutions, Ltd. E Property Address: 0118 Woods Road W Legal Description: Lot 2 Rodgers Lot Line Adjustment S A Parcel of Land Situated in Section 16T9S R85W of the 6th P.M. Property Owner: Name Address Phone: Leslie Rogers 0118 Woods Road Aspen, CO 81611 923-5124 Contractor: Name: Rutgers Construction Inc. Address: P. O. Box 1910 Aspen, CO 81611 Phone: 925-822-9 Saturation and Swelling o Smeared surfaces removed X Yes o Gravel Added X Yes To a 4" Depth o Date and Time presoak water added 08/19/97 (a,! 8:05 P.M. o Amount of presoak water added 36 gallons/test hole o Water remaining in holes after two hour presoak periods? Hole 1: Yes X No Hole 2: Yes X No Hole 3: Yes X No Percolation Rate Measurement Hole 1: 4 nninuteslinch Hole 2: 11 minutes/inch Hole 3: 7 minutes/inch AVERAGE 8 minutes/inch Excavating Contractor: Name: Draeger Excavating, LLC Address: 0_092 Hooks Lane, 413 Basalt -CO 81621 Phone: 927-3431 Groundwater: o Not Encountered to 9 ft. o Estimated depth to high seasonal water if not encountered- 20 feet o is area believed to be subject to seasonal fluctuations which could result in a seasonal water table? Yes X No Slope in absorption area 15% to the Southeast Bedrock o Not Encountered o Estimated depth if not encountered -40 feet o Type of bedrock: Sandstone X Claystone or Shale Siltstone Other: o Is bedrock believed to be permeable? Yes X No I certify that the above information is correct and complete to the best of my knowledge and that all tests were performed in accordance with the provisions of Pitkin County Individual Sewage Disposal System Regulation, Articles 5.1 through 5.8 and under the supervision of a Registered Professional Engineer. Robert F. F. Nelson President Reviewed by: -r Ed Church, P.E. E. O. Church, Inc. PC) Rnx 6967 Snowmass Village, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 Aug -21-97 01:11P Nelson Environmental & Wastewater Solutions, Ltc E TABLE) W PERCOLATION TEST RESULT FORM S Hole Length Depth at Depth at Drop in Average Hole Depth of Interval Start of Interval End of Interval Water Level Percolation No. (in.) (Minutes) (Inches) (Inches) (Inches) Rate(Min./Inch) 1 42 6 3 9/16 1/4 3 5/16 (refill) 6 3 112 1 3/8 2 1/8 (refill) 6 41/2 11/4 31/4 (refill) 6 .43/8 1 9116 2 13/16 (refill) 6 41/2 213/16 1 11116 (refill) 6 413/16 31/16 1314 6 4 1/16 23/8 1 11/16 3.5 2 38 6 61/2 51/4 11/4 6 5 1/4 45/16 15/16 6 45/16 3 3/4 9/16 6 33/4 3 5/16 7/16 (refill) 6 63/8 5 1/2 718 6 51/2 413/16 11/16 6 413/16 41/4 9/16 11 3 40 6 63/4 5 7/8 7/8 6 57/8 5 7/8 6 5 43/8 11/16 6 43/8 3 3/8 1 (refill) 6 615116 515/16 1 6 515/16 51/16 7/8 6 5 1/16 43/ 16 7/8 7 Leslie Rodgers Property Lot 2, Rodgers Lot Line Adjustment A Parcel of Land Situated in the NE 1/4 NW 1/4 of Section 16, T9S, R85W of the 6th P.M. Date of Percolation Test: 08/4-9/97 P_01 CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 EOC L_ E.O. CHURCH, INC. ENGINEERS & GEOLOGISTS September 4, 1997 Tony Rutgers 512 Spruce Street Aspen, Colorado 81611 C rJ Vr, 1� C n SEP u 1997 Subject: OWS Design, Leslie Rogers Residence Addition 0118 Woods Road Lot 2, Rogers Lot Line Adjustment Pitkin County, Colorado Job No. 8842 Dear Mr. Rutgers, As requested, we have visited the site, reviewed subsurface conditions and designed an Onsite Wastewater System (OWS). The OWS design is based on the Soil Evaluation and Percolation Test report prepared by Nelson Environmental and Wastewater Solutions, Ltd. (NEWS) dated August 21, 1997. SITE CONDITIONS - The site is a 2.81 acre lot with an existing three bedroom residence in a rural area of Pitkin County, Colorado as indi- cated on Fig. 1. The slope at the proposed field area is 15% to the northeast. The ground surface has a moderate cover of evergreen trees and landscaped areas. The site is not in a confined drainage area. EXISTING AND PROPOSED CONSTRUCTION - A three bedroom residence exists at the site. A one bedroom addition is proposed at the location indi- cated on Figs. 1 and 2. The total area of the residence will be 3250 square feet (SF). The OWS for the proposed residence is sized based on the structure having between 2000 and 6000 SF. The sewage loading for a 3250 SF four bedroom home is 800 gallons per day (GPD), based on two people per bedroom and 100 GPD per person. A 1.75 peaking factor is required results in a design loading of 1400 GPD. The design load- ing includes a garbage grinder, dish washer and washing machine. The residence is served water by the existing shared onsite well located northwest of the structure. The proposed trenches will be located 200 feet from the existing well and 105 feet from the Roaring Fork River. The distances meet Pitkin County setback requirements of 132 feet and 82 feet respectively. The existing OWS consists of a reported 1000 gallon septic tank and a seepage pit (dry well) as indicated on Figs. 1 and 2. The septic tank is accessed by an ejector pump in the basement mechanical/laundry room. The size of the septic tank will have to be confirmed at the time of construction. The seepage pit is to be abandoned. SUBSURFACE CONDITIONS - Subsurface conditions were investigated by NEWS. Subsurface conditions were explored by excavating a test pit and three percolation holes at the locations indicated on Fig. 1 in Appendix A. Subsurface conditions consist of 1 foot dark brown silty 925 East 17th Avenue • Denver, Colorado 80218-1407 P.O. Box 2869 • Evergreen, Colorado 80437-2869 (303) 832-9692 FAX (303) 832-3517 (303) 674-0660 FAX (303) 674-0813 2 loam topsoil underlain by slightly lighter silty clay loam to 8 feet, underlain by a lighter tan silty sand and cobble layer to the maximum depth explored of 9 feet. No free water or bedrock was encountered in the test pit. Percolation rates ranged from 4 to 11 minutes per inch (MPI). The average percolation rate of 8 MPI. The material in the profile pit was a colluvial soil and the 4 MPI percolation rate is due to random sandy zones. The average percolation rate is representative and is a suitable soil. Profile and percolation data is presented on the Pitkin County forms in APPENDIX A. RECOMMENDATIONS - We recommend the installation of a septic tank, lift station, distribution box and chambered trench drain field OWS at the location indicated on Fig. 2. The OWS should be constructed similar to Figs. 2 and 3. The minimum septic tank requirement is 1750 gallons. The size of the existing septic tank capacity needs to be confirmed. If the existing septic tank is 1000 gallons, we recommend removal of the dividing baffle, or at least creating a 2 foot hole in the baffle. With an existing 1000 gallon tank, we recommend the installation of a second 1250 gallon two compartment precast concrete septic tank. A screened vault lift station should be installed in the second chamber of the second septic tank as the lift station. An alternative is a third 500 gallon tank to contain the screen vault pump assembly. A distribution box allows distribution of flow to the trenches. We recommend three trenches with a total of 594 SF be installed, based on a sewage load of 800 GPD and a percolation rate of 8 MPI. A total of 33 chambers is required. The dimensions of the trenches and number of chambers per trench are presented in Fig. 3. The trenches should be backfilled with onsite soil to reestablish the original slope. Cham- bers which allow curving of the trenches can be used. If the owner is anticipating finishing of additional bedrooms in un- finished areas or additions, we recommend the OWS be constructed to serve the additional loading. The installation of a properly sized OWS to serve future buildout can be cost effective. The proposed septic tank configuration will serve up to a five bedroom residence between 2000 and 6000 SF. For greater than five bedrooms, the septic tank must be upsized to 500 gallons per bedroom. Each additional bedroom greater than four bedrooms would require an additional 149 SF (9 chambers) of chambered trenches. We recommend the surface of the trenches be seeded after installation of the system. A good native grass cover will promote transpiration. We recommend a local native seed mix available at seed stores. These mixes do not require irrigation. No automatic sprinkler system should be installed over the trenches. The owner must realize an OWS is different from public sewer service. The owner must assume responsibility for maintenance of the system. The OWS is relatively maintenance free, but the owner must have the septic tanks pumped and the screened vault cleaned. We recommend the first tank be pumped every two years. There are daily considerations such as not putting plastic or other nonbiodegradable material in OWS. Water use must be monitored so toilets are not allowed to run when seals malfunction. To illustrate the point, a running toilet will consume in excess of 1000 gallons per day if allowed to run. An excess 1000 GPD load may flood and irreparably harm the trenches. We caution against installation of a water softener. The hydraulic loading from the backwash of a water softener can be detrimental to OWS and a separate drywell should be constructed for the backwash waste, if a water softener is installed. Landscaping or plastic should not be installed over the field. Chemically treated water from a swimming pool or spas should not be introduced into the OWS. LIMITATIONS - Our investigation, layout, design and recommendations are based on data submitted. If subsurface conditions considerably different from those described in this report are encountered, we should evaluate the effect of changes on the proposed OWS. If modifi- cations to this design are made by a Health Departments, we should be contacted to evaluate the impact on the performance of the OWS design. All construction is to be in accordance with the ISDS regulations. Pipe type and size, burial requirements, septic tank construction, and other specifications, which are not depicted in our report, are to conform to the requirements of the Pitkin County ISDS regulations. The installer of the system is to be approved by the County Health Depart- ment, and is to have demonstrated a knowledge of the ISDS regulations and requirements. If there 3 copies sent tse call. xc: Pitkin County Health Department, ATTN: Betsey Kipp / F)FAI F \\ \\ 2.13 ACRES 1 ' =6B ' ROGER RESIDENCE 01118 WOODS ROAD R�,�f,�ERS LOT LINE ADJUSTMENT N COUNTY, COLORADO \PARK IHO \ t Yi?/ \ \ \ s10 r21� Q SgT jx59,47 I \ \ + 7 \lY \ Iwo wz J� � v \ 1-1/9' &OL7 HOVSE fi SEEPAr. r OF UNK W I \ — 199 YEAR FLOOD PLAIN EXISTING I TA \ \ , } mm MGH W&M Lum )OK S44 PAG U7 REPORTEDL C GAL ; - ` \\1 - TA"MU e (TO BE C L -ED) , 11 \ \ EDGE OF STEEP WOODED HILSIDE LOT 2 4.131 ACItES •,- I ` + � + STONE 1 + 1 WALK 1 \ \ 1 + 1 \ \ 1 \ \ ROCK WALL \ 11 \ 1 + \ + I 1 I \ f \ 1 \\1 1 1 1 1 \ NOTE: EJECTOR PUMP IN BASEMENT PUMPS SEWAGE TO SEPTIC TANK. BASE MAP SUPPLIED BY ASPEN SURVEY ENGINEERS, INC. SITE PLAN JOB NO. 8842 FIG. 1 SCALE 2. 13 S\ - o.8 � RECORD OVERLAP l =30 \ R'OGERS D Cf \ 1181 t OD AD �.. OT LINE ADJUSTMENT GRAVEL COUNT LORADO I= S T IWRK I NG \ SH EDELL%�" \ / � 91;4 TB' 6O _ \ \ X '`\ �� \ SEEPAGE PIT TO BE ABANDONED \\\ "Z') � Z') \\ �— EXISTING SEPTIC TANK'') �� \ OSED 1250 GALLON TWO r 1 - SHED ` ` P TMENT SEPTIC TANK L T STATION IN SECOND TM \ \ 1 S } \ \ S'PONE WALL 11 \ �� \ \\ .. 1 \ HYDRAN WOOD DECK 1 \ \ a �` GOOF o 1 RIIAN ZOO \ GARAG f$B• Tel HOUSE 1/00D DECK [4E WALI. P I \ PON ONE S1DR K \ 4 PVC D I S TR ON ' BOX EE CHAMBERED TR N \ \ \\� WoaDEn�ID `�. CHAMBERS PER TRENC \�\\ IfI OTAL AREA - 594 SF / \ ri' \ EDGE OF STEEP WOODED H I LS I DE LOCATION OF PROPOSED OWS JOB NO. 8842 \ \ F I 2� t 1250 GALLON TWO COMPARTMENT PRECAST CONCRETE SEPTIC TANK WITH LIFT STATION IN SECOND COMPARTMENT OF SECOND TANK FINAL GRADE SLOPE FOR DRAINAGE 6' DIAMETER PVC WITH CAP ACCESS LID ACCESS LID �i11�111F�111G� J r I I- k?� 11 r DISTRIBUTION VALVES CONCRETE BLOCKS SPECIFICATIONS: I. MINIMUM PUMP CAPACITY: 30 GPM AT A 15 FOOT HEAD 2. PUMP ON LEVEL WITH A MINIMUM OF ISO GALLONS FOR PUMPING 3. INSTALL PRESSURE RELIEF VALVE AT HIGH POINT IN PUMP LINE. 4. AUDIBLE ALARM IN BUILDING. ALARM LEVEL 3 INCHES ABOVE_ "ON" FLOAI LEVEL OF TANK 1-0 BE INSTALLED ON DEDICA IED CIRCUI I PUMP CHAMBER DETAIL JOB NO- 8842 FIG. 3 - ,-- UNION JOINT FOR QUICK DISCONNECT ' POWER, LINE WITH INLET FROM SEPARATE DEDICATED - HIGH WATER FIRST SEPTIC CIRCUITS FOR PUMP ALARM TANK AND ALARM - ON/OFF FLOAT EFFLUENT PUMP - ORENCO 60 INCH IS INCH DIA. SCREENED PUMP VAULT WITH VAULT INTAKE 12 INCHFS FROM BOTTOM OF VAULT CONCRETE BLOCKS SPECIFICATIONS: I. MINIMUM PUMP CAPACITY: 30 GPM AT A 15 FOOT HEAD 2. PUMP ON LEVEL WITH A MINIMUM OF ISO GALLONS FOR PUMPING 3. INSTALL PRESSURE RELIEF VALVE AT HIGH POINT IN PUMP LINE. 4. AUDIBLE ALARM IN BUILDING. ALARM LEVEL 3 INCHES ABOVE_ "ON" FLOAI LEVEL OF TANK 1-0 BE INSTALLED ON DEDICA IED CIRCUI I PUMP CHAMBER DETAIL JOB NO- 8842 FIG. 3 TYPICAL PLAN VIEW 3' OR 4" PVC - ` OBSERVATION/VENT PIPE 3' 3' TYPICAL CROSS-SECTION NATURAL GRADE SPECIFICATIONS DESIGN CRITERIA GRAVELLESS CHAMBERS SEE BELOW EFFLUENT INLET FROM DISTRIBUTION BOX 3' OR 4" PVC OBSERVATION/VENT PIPE 1 I1 SLOPE FOR II DRANAGE �- IS 3 3� k<3'�4 GRAVELESS CHAMBERS STRUCTURE - 4 BEDROOM RESIDENCE TOTAL LOADING - 0 - 800 GPD PERCOLATION RATE - T - 8 MPI AREA - (1.75 X 0 X 4T)/5 TOTAL AREA - 791 SF REDUCTION FOR USE OF CHAMBERS - 30% TOTAL AREA - 554 SF TREAMENT UNIT SPECIFICATIONS TRENCH SPECIFICATIONS LENGTH - 68.75 FT WIDTH - 3 FT NUMBER OF TRENCHES - 3 TOTAL PROPOSED AREA - 594 SF NUMBER OF CHAMBERS PER TRENCH - II TOTAL NUMBER OF CHAMBERS - 33 EXISTING 1000 GALLON SEPTIC TANK (TO BE CONFIRMED AT INSTALLATION) ADD 1250 GALLON TANK WITH SCREENED PUMP IN SECOND CHAMBER TRENCH DETAILS JOB NO. 8842 FIG. 4 APPENDIX A Nelson Environmental and Wastewater Solutions Report Rogers Residence 0118 Woods Road Pitkin County, Colorado 0 Envirmsn nUd & Wastewater DA E August 21, 1997 W Ms. Leslie Rogers 0115 Woods Road Aspen, CO 81611 or a Subject: Sails Evaluation and percolation Testa for anAdditionalluinbet ual s 4l �a W000ds Road, 2.1'3 -sore Parcel of Land. Lot 2, Rodgers Lot Lune Adjustment, Piddn County Colorado Dear Leslie, As requested, Nelson Environmental and Wastewater Solutions, Ltd., has performed a soils study tic system for the residence at the subject site. We and percolation testing to de6gn a sep conducted this study according to Article S of the � in Qiln�}'--ter IlarioriR Q _ ndi 'clue on Tuesday August 19, 1997. We have bawd our meoommendations on the subsurface conditions encountered at that time. Please ftirnish this letter and a COPY of the enclosed data sheet to the Aspen/Pitkin Enviromnental Health Department to obtain a permit to construct this individual sewage system. ��.Pti�S2Qll�.S�lIII�►�ildintt �iit�: The existing main residence is currently a three-bedroom, three bathroom, two-story frame house. The total living arca of the existing house is calculated to be approximately 2700 square feet. There are unoccupied outbuildings and a detached garage also constructed on the property. As we understand, the plan is to add a 550 square foot addition on the south side of the house. Included in this addition is one mora bedroom and another bath. Tho domestic water supply for the residence is from a drilled well off of the northwest corner of the property. The water service lines ane already in place.. The lot is approximately 2.13 acres in size and located along the Roaring pork River. Most of the property slopes to the West at grades up to 40 %. However, the ground surface in the area of the proposed absorption field slopes to the Southeast at 15%. The developed portion of the property is covered with evergreen trees and landscaped with lawn and flower bads. Thera is a small spring -fed pond on the property with the overflow discharging into a rock -lined channel flowing to the river. No records are available at the Aspen/Pitkin Environmental health Department, However, the existing system on the property is believed to consist of a 1000 -gallon oancrete septic tank just west of the house. This tank reoeives the sewage flow from a grinder/ejector pump incited in the P.O. Dox 6961 Snowmass Village, CO 81615 Office (970) 923.3299 Home do Fax (97 0) 923.2766 Rodgers Residence Evaluation of Soil and Percolation Testing 0118 woods Road August 21, 1997 Page 2 basement mechanica sundry room of the house. The size, location, and construction methods for the final septic tank effluent discharge are unknown. Because of the addition planned for on the house, expansion of the septic system is expected to be required by the Aspen/Pitkin Environanm Al Hetlth Department. A soil profile pit, excavated across the arca considered suitable for an on-site wastewater disposal system absorption field, was dug to a depth of approximately nine foes. The excavation revealed that no groundwater was encountered to that depth.. Ni ther, there was no bedrock evident in the proSle pit. The soils within the profile excavation consisted of 12 inches of dark brown silty loam topsoil grading to a slightly lighter silty clay loam to a depth of eight feet and overlaying a lighter tan silty sand and cobble layer at the bottom of the proSle pit. Some loose shale fragments were encountered in a eighteen Inch layer below the topsoil in percolation test pits #2 and 03. Percolation Testhw The subsurface soil conditions were evaluated with the standard percolation test procedures at the approximate location shown on Figure 1. The test holes were excavated to a depth anticipating the installation of a level bed with a three foot cut on the side that was most downhill and were dug to the same elevation. The test holes were prepared by hand -digging a small hole in the bottom of a three foot deep backhoe excavation. Four inches of gravel were placed in each test hole after all loose soil had been removed and the test hole sidewalls roughened. During the final test hole preparation we avoided smearing the soil surfiK=. The percolation holes were pre-soaked by adding water to a depth of ten Inches above the gravel layer early in the morning of the day the test measurements were done. At regular two-hour intervals throughout the day, the test holes were refilled. When the test began, the test holes were empty, and were refilled to a depth of ten inches above the bottom of each test hole The results of the percolation testing are prewted in Table 1. These results indicate the silty clay loam soils had an average percolation rate of 8 minutes per inch. Soils with a percolation rate in this range are considered suitable for a conventional infiltration design for the on-site sewage "ML Rodgara Reside Evaluation of Soil end Percolation Testing 0118 Woods Road August 21, 1997 Page 3 LidQm This report has been prepared according to generally accepted practices in this area for use for sewage disposal design purposes. The conclusions and recommendations submitted in this report are based upon data obtained from our site visits at the location indicated_ 'There is some possibility that the nature and extent ofvariations in the subsurface soils across the site may not have been evident at the time of this investigatioN and may need additional evaluation, if farther excavation reveals conditions different from those described. This office should be advised of any unusual situations as soon as possible so that we may reevaluate our 1 oomroendations. If you have questions or if we may be of further assistance, please call the office. 4t - Robert F. Nelson, R.E.H.S. Phccaddm Attachment cc: Torry Rutgers Rutgers Gombuction, Inc. Revtevybd B t ; Each ' •�p.E. E. Q. C and Geologists FIGURE 1 Roars Rropwty o11s Woods Road Am— Scale: 1" 72' WMM Nelson Em*wnmentwl & �J�steto - r ,-�A© E Pro Address: 011 Woods 1tcm-d ' 1 .� •.h 'III11111"111♦ s U �7. .li 1 Property Owner: Name Address Phone: Contractor. Name: Rt>ttters CoHWU M lnc. Address: P. O. Box 1910 Ashen, CO RCLI 1 Phone. �Yl -822 3atu raJilon &ad Swelllwg o Saeaned sar6Cee ren oved X21es o Or"d Added Yea To a 4" Depth o Dade and Tizat p MW* wtdar added -M.jgj (4 3:03 ROL o Amoanl of prowok anter added 36 &allona/ M hole o Wmr ttaulati►g in boles attar two bw presoak periow Holt 1: Yoe �(. No Hole 2: Yes , No Hole 3: Yas X No rereolatloo Rate Meaaaraaaent tithe 1: 4 wini*mAnch Hole 2: 11 JminOWinieb Hole 3: 7 rdioukWinch AVERAGE m minutes/inch Excavating Contractor: Name: DnamrM&YAUM LL Address: 0092 Hooks Lane, i� 13 B t, CO 8]§21 Phone: 221--143-1 C„rorndwater. o Not E'nmunta nd to 9 ft. o FUjnU W depth to high waronrl j watar if not anoountered- 20 fbet o is arta bcikwW to be JJt**4 to SeMm Jl thiotuaJlwns which Could readt in a wasonal watts table? _ Yes No Slope la abaarptiea area 15% to the Southeast BodMk o Not Enoaunletied o Estimated depth if not onooantered-40 fat o Type of bedrock: Sandstone I,Clayetone or Shale Sihslone alter: 0 1s bodrock believed to be peratcablc7 _ Yes —X_Ne I certify that the above information is correct and complete to the best of my knowledge and that all tests were performed in aceordance with the provisions of Pitkin County Indivi . Ftl8e Dispon) Sv9% RR%ulatig% Articles 5.1 through S.8 and under the supervision of a Registered Profbosionbl Engineer. Robert F. Nelson President Reviewed by.- Ed y: Ed Church, P.E. E, Q. Church, Inc. P.O. Box 6%1 Snowmase Village, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 NOLI*n Enaronmental & WasteUVMa r Solu Ltd. E 'TABLE I w SDrop Hole Lar►gzh Depth at Depth at End Intevval in WaterLevel Average percolation erc l tom) Hole Depth of Interval Stw1 of Interval of (Inches) (Inches) Rat No. (in.) (Minutes) (Taches) 1 42 6 39/16 114 35/16 () 6 3 112 13/9 21/8 (refill) 6 41/2 1 1/4 3 1/4 OCR 6 4'3/8 19116 213/16 (rem) 6 41/2 213/16 111/16 (gyp) 6 413/16 41/16 3 1/16 2 318 1 314 1 11/16 3.5 6 2 38 6 61/2 51/4 1114 6 51/4 45116 15/16 6 45/16 33/4 9/16 6 33/4 35116 7/16 (amu) 6 63/8 51/2 7/8 6 51/2 413/16 11/16 6 413116 41/4 9/16 11 3 44 6 63/4 57/8 718 6 57/9 5 7/8 6 5 43/9 11/16 6 4 318 33/8 1 (refill) 6 615/16 515/16 1 6 515/16 51/16 7/8 6 5 1/16 43/ 16 718 7 Leslie Rodgers Prop" Lot 2, Rodgers Lot Line Adjustment A Parcel of Land Situated in the NIB 1/4 NW 114 of Section 16. T9S, R95W of the 6th P.M. Date of Percolation Test: 08/19/97 P.O. Box 6961 Snowmass Village, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 P_01 Aug -21-97 01:06P Nelson Environmental & Wastewater Solution., Ltd! E August 21, 1997 W Ms. Leslie Rogers S 0118 Woods Road Aspen, CO 81611 Subject: Soils Evaluation and Percolation Tests for an Additional Individual Sewage System for a 2.13 -acre Parcel of Land, Lot 2, Rodgers Lot Line Adjustment, numbered as 0118 Woods Road, Pitkin County Colorado Dear Leslie, As requested, Nelson Environmental and Wastewater Solutions, Ltd., has performed a soils study and percolation testing to design a septic system for the residence at the subject site. We conducted this study according to Article 5 of the Pitkin County Regulations on Individual Sewage Disposal Systems on Tuesday August 19, 1997. We have based our recommendations on the subsurface conditions encountered at that time. Please furnish this letter and a copy of the enclosed data sheet to the Aspen/Pitkin Environmental Health Department to obtain a permit to construct this individual sewage system. Existing and Proposed Construction and Building Site' The existing main residence is currently a three-bedroom, three bathroom, two-story frame house. The total living area of the existing house is calculated to be approximately 2700 square feet. There are unoccupied outbuildings and a detached garage also constructed on the property. As we understand, the plan is to add a 550 square foot addition on the south side of the house. Included in this addition is one more bedroom and another bath. The domestic water supply for the residence is from a drilled well off of the northwest corner of the property. The water service lines are already in place.. The lot is approximately 2.13 acres in size and located along the Roaring Fork River. Most of the property slopes to the West at grades up to 40 %. However, the ground surface in the area of the p: `vosed absorption field slopes to the Southeast at 15%. The developed portion of the property is co ered with evergreen trees and landscaped with lawn and flower beds. There is a small spring -fed pond on the property with the overflow discharging into a rock -lined channel flowing to the river. Existing._ Onsite Sewage System No records are available at the Aspen/Pitkin Environmental Health Department. However, the existing system on the property is believed to consist of a 1000 -gallon concrete septic tank just west of the house. This tank receives the sewage flow from a grinder/ejector pump located in the pn. Box 6961 Snowmass Villaze, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 Aug -21-97 01:08P Rodgers Residence Evaluation of Soil and Percolation Testing 0118 Woods Road August 21, 1997 Page 2 basement mechanical/laundry room of the house. The size, location, and construction methods for the final septic tank eluent discharge are unknown. Because of the addition planned for on the house, expansion of the septic system is expected to be required by the Aspen/Pitkin Environmental Health Department. Subsurface Conditions: A soil profile pit, excavated across the area considered suitable for an on-site wastewater disposal system absorption field, was dug to a depth of approximately nine feet. The excavation revealed that no groundwater was encountered to that depth. Further, there was no bedrock evident in the profile pit. The soils within the profile excavation consisted of 12 inches of dark brown silty loam topsoil grading to a slightly lighter silty clay loam to a depth of eight feet and overlaying a lighter tan silty sand and cobble layer at the bottom of the profile pit. Some loose shale fragments were encountered in a eighteen inch layer below the topsoil in percolation test pits #2 and #3. Percolation Testing: The subsurface soil conditions were evaluated with the standard percolation test procedures at the approximate location shown on Figure 1. The test holes were excavated to a depth anticipating the installation of a level bed with a three foot cut on the side that was most downhill and were dug to the same elevation. The test holes were prepared by hand -digging a small hole in the bottom of a three foot deep backhoe excavation. Four inches of gravel were placed in each test hole after all loose soil had been removed and the test hole sidewalls roughened. During the final test hole preparation we avoided sIIiewting the sutl Eutface6. The percolation holes were pre-soaked by adding water to a depth of ten inches above the gravel layer early in the morning of the day the test measurements were done. At regular two-hour intervals throughout the day, the test holes were refilled. When the test began, the test holes were empty, and were refilled to a depth of ten inches above the bottom of each test hole. The results of the percolation testing are presented in Table I. These results indicate the silty clay loam soils had an average percolation rate of 8 minutes per inch. Soils with a percolation rate in tltlN 14118v air, wj,a«lv,j au:tuLl. fm� d i"Itnation dooign for the on -cite cPliflaaP system. P.O1 Aug -21-97 01:10P Rodgers Residence Evaluation of Soil and Percolation Testing 0 11 S Woods Road August 21, 1997 Page 3 Limitations: This report has been prepared according to generally accepted practices in this area for use for sewage disposal design purposes. The conclusions and recommendations submitted in this report are based upon data obtained from our site visits at the location indicated. There is some possibility that the nature and extent of variations in the subsurface soils across the site may not have been evident at the time of this investigation, and may need additional evaluation, if further excavation reveals conditions different from those described. This office should be advised of any unusual situations as soon as possible so that we may reevaluate our recommendations. If you have questions or if we may be of further assistance, please call the office. Sincerely, Reviewed By: _ FI Robert F. Nelson, R.E.H.S. Ed Church, P.E:, .'°..� p�nae President E. 0. Church InZ�=fit � Geologists„ Attachment cc: Tony Rutgers Rutgers Construction, Inc. P_O1 Aug -21-97 01:12P P_01 .Nelson EnvironmenUd & Wastewater Solutions, Ltd E Property Address: 0118 Woods Road W Legal Description: Lot 2 Rodgers Lot Line Adjustment S A Parcel of Land Situated in Section 16 T9S R85W of the 6th P.M. Property Owner: Name Address Phone Contractor: Leslie Rogers 0118 Woods Road Aspen CO 81611 923-5124 Name: Rutgers Construction Inc. Address: P. O. Box 1910 AsRen, CO 81611 Phone: 925-82L9 Saturation and Swelling o Smeared surfaces removed X Yes o Gravel Added X Yes To a 4" Depth o Date and Time presoak water added 08/19/97 (66 8:05 P.M. o Amount of presoak water added 36 gallons/test hole o Water remaining in holes after two hour presoak periods? Hole 1: Yes X No Hole 2: Yes X No Hole 3: Yes X No Percolation Rate Measurement Hole 1: 4 minutes/inch Hole 2: 11 nunutes/inch Hole 3: 7 minutes/inch AVERAGE 8 minutes/inch Excavating Contractor: Name: Draeeer Excavating, LLC Address: 0092 Hooks Lane, #13 Basalt CO 81621 Phone: 927-3431 Groundwater: o Not Encountered to 9 ft. o Estimated depth to high seasonal water if not encountered- 20 feet o Is area believed to be subject to seasonal fluctuations which could result in a seasonal water table? _ Yes X No Slope in absorption area 15% to the Southeast Bedrock o Not Encountered o Estimated depth if not encountered -40 feet o Type of bedrock: Sandstone X Claystone or Shale Siltstone Other: o Is bedrock believed to be permeable? Yes X No I certify that the above information is correct and complete to the best of my knowledge and that all tests were performed in accordance with the provisions of Pitkin County Individual Sewage Di pog! System Regulation, Articles 5.1 through 5.8 and under the supervision of a Registered Professional Engineer. Robert F. Nelson President Reviewed by'. - Z4 . Ed Church, P.E. E. O. Church, Inc. logists P f) Roy 6961 Snowmass Villaze, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 Aug -21-97 01:11P Ne on Environmental & Wastewater Solutions, Ltd E TABLE W PERCOLATION TEST RESULT FORM S Hole Length Depth at Depth at Drop in Average Hole Depth of Interval Start of Interval End of Interval Water Level Percolation No. (in.) (Minutes) (Inches) (Inches) (Inches) Rate(Min./Inch) 1 42 6 3 9/16 1/4 3 5/16 (refill) 6 3 112 1 3/8 2 1/8 (refill) 6 4 1/2 1 1/4 3 114 (refill) 6 .43/8 1 9/16 2 13/16 (refill) 6 41/2 213/16 111/16 (refill) 6 413/16 31116 1314 6 41/16 23/8 1 11/16 3.5 2 38 6 61/2 51/4 11/4 6 5 1/4 45/16 15/16 6 45/16 3 3/4 9/16 6 3 3/4 3 5/16 7/16 (refill) 6 63/8 5 1/2 718 6 51/2 413/16 11/16 6 413/16 41/4 9116 11 3 40 6 63/4 5 7/8 7/8 6 57/8 5 7/8 6 5 43/8 11/16 6 43/8 3 3/8 1 (refill) 6 615/16 515/16 1 6 515/16 51/16 7/8 6 5 1/16 43/ 16 7/8 7 Leslie Rodgers Property Lot 2, Rodgers Lot Line Adjustment A Parcel of Land Situated in the NE 1/4 NW 114 of Section 16, T9S, R85W of the 6th P.M. Date of Percolation Test: 08/4,9/97 P_01 Villaee, CO 81615 Office (970) 923.3289 Home & Fax (970) 923.2766 081'21/97 14:42 U9709"-7278 p n rn � oim w m m �m 04 �OCiM ` �mm p. 4:1 O Ox ��mm nip��� C7 m Fn $�omtn m 1 r- 'r C . z Z r W 2 02 w S - mm z� P O AA � m r Y � Y A O KDm 0 o '- a� 9CSD Plant 70 I .<•i�•r l.:yi '-�i :.}J.�✓� •;�Y;}r �a-1. �, rr �r•,��.d'. �i1j r,.�;��i'Y�cw.`Sv.wa-:• „�._;� �. �; ' !..'r -4�4 ..� r•3. •"r. i= .. :'i: �;::%-'�ti�.�i'.r} .�'l-.rl..�..ti`: �a-. `.}�'. •� �'.._ - •^J.�L � - i?.•:� : r• �t'`ti "tir`;t cc'Ff'z-S•`•'C4:c�: .t�:. ,i:r� .. 'r` - -• `^ - r -- 08/21/97 14:42 '$9709"-7278 ACSD Plant X _�;r; p+.i��.�'- .i J.+fes '�y.� !i• -`•i :r" tC�': `•�`'�- :�V''':J4'.�1:7 '�?fXti,;� -'iJ-' - -moi .wl'Cc.�;a - 4^ CT's '':-;,_ >;}I �•-1';• r-• rrv- r '..' - - - •, - `��=I . - ,y� ; ::..:. rJ� - _' :4- :.K+��4y��,�� ;.f.� 3. •'r- i.-,���:: �::='�ha,�i-.s: �'1-•r[• ,�•.�:�': x1; �i�' .l9'^'�: _ ;;J..�'L � .�' -v,: X15-� _ � �:�: - ;-sc:'i�'�t� a _ -•�t r!;1%'?.•�f' r!''. �s..��`LL :.-Y':'�t �•. -N�' .i!Er 'r` - - •c.•~ � - - o w Via' i x �Qo� r^ Fn c�5 ? w mv�= cnvnsmC� nisrc-, Onr� r m o 0 pi �" D m_ �' FM m m 2t r yT � m ACSD Plant X _�;r; p+.i��.�'- .i J.+fes '�y.� !i• -`•i :r" tC�': `•�`'�- :�V''':J4'.�1:7 '�?fXti,;� -'iJ-' - -moi .wl'Cc.�;a - 4^ CT's '':-;,_ >;}I �•-1';• r-• rrv- r '..' - - - •, - `��=I . - ,y� ; ::..:. rJ� - _' :4- :.K+��4y��,�� ;.f.� 3. •'r- i.-,���:: �::='�ha,�i-.s: �'1-•r[• ,�•.�:�': x1; �i�' .l9'^'�: _ ;;J..�'L � .�' -v,: X15-� _ � �:�: - ;-sc:'i�'�t� a _ -•�t r!;1%'?.•�f' r!''. �s..��`LL :.-Y':'�t �•. -N�' .i!Er 'r` - - •c.•~ � - - �OD&RD I - SAWOIM waroc, wort „ 16C%,,,y c�_J�-- r , t , ► �ar►� � � cpw� � � ► off- - � Mp� I r q2104 0 q_ 3�i/ p;�I— .�u� {WAtEPHT, t- �h it�Kr RkT�P�S le. t -oz 4 C 0 0 ASPEN/PITKIN (J� ` CO TY DEVELOPMENT DEPARTMENT 130 South Galena Street Aspen, Colorado 81611 Phone (970) 920-5090 FAX (970) 920-5439 �pO �odcis eL j � � Gs MEMORANDUM 5 re TO: Environmental Health & U' Zoning �I1 g Choccs� � FROM: Lance Clarke, Community Development Department RE: Woods Minor 1041 Hazard Review Parcel ID #2643-164-00-052 DATE: July 30, 1997��3 Attached for your review and comments is an application submitted by Leslie Woods. Please return your comments to me no later than August 29, 1997. Thank you. ZL Ac (�L' 1 w� ae" Contact n� n0i 41 AoDds 8/ Ra Qx-3 10-) l 1,n VaV4� �lo ore, snap In vee ' a" aha&-- �� . -_____-_ ______ ___- _-_____�____________-__-_-___� __� __-_ � '--___-__- ___________� _ ~ ~ ��u ' ��� �N� ��� ~ ~ � 1'-30' 0 30 60 LINE BEARING DISTANCE L 1 N 17615'00'E 14.50' L 2 N 08°56'09'E 28.03' L 3 N 60°30'00'W 20.51' L 4 N 56026'00'E 27.71' VICINITY MAP 1'-2000' oodyreeit� c-5 1 SITE PARKING EASEMENT BOOK 744 PAGE 449 20151 NOTICE: ACCORDING TO COLORADO LAW YOU MUST COMMENCE ANY LEGAL ACTION BASED UPON ANY DEFECT ON THIS PLAT WITHIN THREE YEARS AFTER YOU FIRST DISCOVER SUCH DEFECT. IN NO EVENT MAY ANY ACTION BASED UPON ANY DEFECT IN THIS PLAT BE COMMENCED MORE THAN TEN YEARS FROM THE DATE OF THE CERTIFICATION SHOWN HEREON. THE CERTIFICATION IS VOID IF NOT WET STAMPED WITH THE SEAL OF THE SURVEYOR. LESLIE WOODS MINOR 1041 HAZARD REVIEW MAP SET 235947 ADJOINING PRPOERTY AS SURVEYED BY OTHERS �\ 1-1/8' BOLT R.O.W. BOOK 564 PAGE 567 RECORD OVERLAP *po 100 YEAR FLOOD PLAIN MEAN HIGH WATER LINE LEGEND AND NOTES FOUND OR SET SURVEY MONUMENT AS DESCRIBED TOPOGRAPHY AND FLOOD BOUNDARY BY CARMICHAEL SURVEYING PLS 24303 BEARINGS BASED ON THE SOUTH 1/4 CORNER (PK NAIL) AND THE SOUTHEAST CORNER OF OF SECTION 16,( 3 1/4' ALUM. CAP) T.9 S., R.85 W., S 89°04-W THE SURVEY OVERLAP SHOWN IS NOT REFLECTED IN THE DEEDS ELEVATIONS WERE SPOT VERIFIED ZONE DISTRICT: AFR-10 SETBACKS: 30' FRONT 20' SIDE 30' REAR 20' MEAN HIGH WATER 5' 100 YEAR FLOOD PLAIN BOUINDARY COMMUNITY DIRECTOR APPROVAL THIS MINOR 1041 HAZARD REVIEW, WAS APPROVED BY THE COMMUNITY DEVELOPMENT DIRECTOR BY: COMMUNITY DEVELOPMENT DIRECTOR LEGAL DESCRIPTION LOT 2 RODGERS LOT LINE ADJUSTMENT RECORDED DECEMBER 7, 19941N PLAT GOOK 35 AT PAGE 73. WAIVER LESLIE WOODS ACKNOWLEDGES THAT IT HAS BEEN INFORMED BY PITKIN COUNTY OF THE EXISTtNCE OF 1041 ENVIRONMENTAL HAZARD AREAS THAT MIGHT AFFECT THE REAL PROPERTY DESCRIBED ON THIS MAP, ANY IMPROVEMENTS, AND THE USE AND OCCUPANCY THEREOF. REGISTERED LAND SURVEYOR DO HEREBY STATE THAT I NOR 1041 HAZARD REVIEW kAP FOR LESLIE WOODS THAT UTSIDE BOUNDARY, ROADS, TOPOGRAPHY AND OTHER LY AND CORRECTLY SHOWN HEREON. ACCEPTAWL41118C I"'Rt CORD I NG THIS MINOR 1041 HAZARD REVIEW MAP IS ACCEPTED FOR FILING IN THE OFFICE OF THE CLERK AND RECORDER OF PITKIN COUNTY, COLORADO, THIS DAY OF JULY, 1997, IN PLAT BOOK AT PAGE PITKIN COUNTY CLERK AND RECORDER PREPARED BY ASPEN SURVEY ENGINEERS, INC. 210 SOUTH GALENA STREET ASPEN, COLORADO 81611 PHONE/FAX (970) 925-3816 DATE JOB 7/97 27190A t c M -c M _ v / 0 0 M ' .T O / \ o r" y V co Ln OD m V � � \� �.. 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